New Zealand Freshwater Fish

DSC_3986 Koi carp (Cyprinus carpio) offered for sale in a city fish market. Koi are an ornamental strain of the common carp native to Asia and Europe. One of the most invasive ﬁsh species worldwide, koi make water turbid and change the habitat for native fish. For a period of time each year, coinciding with Polynesian and Chinese festivals, they are now offered for sale as a food fish in Auckland, where demand is slowly increasing. Auckland *